Home / 5,215.28-7,195.28-2,975.52

Finding the Fourth Proportional to 5,215.28, 7,195.28 and 2,975.52

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Solution

The fourth proportional to 5,215.28, 7,195.28 and 2,975.52 is: 4,105.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.28 : 7,195.28 = 2,975.52 : x
  2. Step 2: Convert to fraction form
    5,215.28/7,195.28 = 2,975.52/x
  3. Step 3: Cross multiply
    5,215.28x = 7,195.28 × 2,975.52
  4. Step 4: Simplify right side
    5,215.28x = 21,409,699.55
  5. Step 5: Solve for x
    x = 21,409,699.55/5,215.28
  6. Step 6: Final answer
    x = 4,105.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.